1296493770 has 64 divisors (see below), whose sum is σ = 3655580544. Its totient is φ = 290123520.

The previous prime is 1296493753. The next prime is 1296493771. The reversal of 1296493770 is 773946921.

It is a happy number.

1296493770 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1296493771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146817 + ... + 155396.

It is an arithmetic number, because the mean of its divisors is an integer number (57118446).

Almost surely, 2^1296493770 is an apocalyptic number.

1296493770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1296493770 is an abundant number, since it is smaller than the sum of its proper divisors (2359086774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296493770 is a wasteful number, since it uses less digits than its factorization.

1296493770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302247.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 1296493770 is about 36006.8572635824. The cubic root of 1296493770 is about 1090.4108010251.

The spelling of 1296493770 in words is "one billion, two hundred ninety-six million, four hundred ninety-three thousand, seven hundred seventy".